Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 27, 2019
Patent Application Number
15815215
Date Filed
November 16, 2017
Patent Citations Received
Patent Primary Examiner
Patent abstract
A double-lift rigid gas spring is invented. It includes an outer cylinder tube, an inner cylinder tube, a ventilated support, a valve body, and a control component. It has benefits: during working, gas pressure is released to push the liquid medium to enter the inner cylinder tube and the hollow piston rod.
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